http://www.mtx.com/caraudio/education/ 
good site to learn how big box needs to be and all that. self-taping screws, are those the ones that are just jagged on the sides so it sticks really well? what did you use for "wadding" the sealed box. where can i get the terminal and port?
oh ya i forgot, how did you cut out the hole where the subs are seated? i dont have one of those machines to cut perfect holes for the subs. also, do you seal the sub to the box so they cant be taken out, but no air can go inside?